Buff



June 4, 1929. HOGABOOM 1,716,056

BUFF

Filed Jan. 13, 1927 llllllllllllllllll 1 lllllllllllllllllllllll an /M Patented June 4, 1929.

UNITED STATES- PATENT OFFICE.

GEORGE B. HOGAIBO OM, OF NEW BRITAIN, CONNECTICUT.

BUFF.

Application filed January 13, 1927. Serial No. 160,875.

This invention relates to bufis such as are used, for example, in buffing metal articles and the like, and which usually comprisea wheel made up of anumber of disks of cotton fabric, usually of the class known as muslin.

With such buffs, the operation of bufiing is performed at the periphery of the wheel and in the use of those heretofore known, the wearing away has beenvery rapid and the life of them accordingly short.

The principal object of the. present invention. is to provide a buff having great wearing quality.

I have found that in all buffs heretofore constructed, the rapid wearing away has been due in lar e measure to the breaking of threads of w ich the muslin or the like was composed, and that the buff has not had the maximum possible wearing quality for the reason that the threads were not uniform in those respects which apply to their durability m use. To accomplish the object of the present invention, I- therefore, have designed a bufi' in which a special new type of weave is em loyed, as a result of which the'component t eads all have equal ability to avoid breaking and to withstand the wearing effects incidental to their use in buifing. .Previous attempts to solve the problem have roceeded in the direction of particular met ods of. cutting the woven cloth, such as bias cutting, and the vaddition of strengthening or reinforcing threads and ecial ways of. assembling the different 5 .plies which are employed together in the making of a butt. So far as I am aware, no

one has heretofore recognizedthe underlying cause of the rapid wearing of the buff or suggested the solution of the problem which I employ according to the present invention. v

Inorder to give all the'component threads of the woven cloth equal strength and wearing qualities, I provide a special weave of any threads being weaker than others,

whereby the life is restricted to that of the Weaker threads.

I One embodiment of the invention is illustrated by way of example in the accompany- 1ng drawings, in which t Flgure 1 is a view partly in vertical sect1on illustrating one type of finished'buif constructed in accordance with the inven tion and mounted, for example, upon an arbor as used in bufling operations. 7

Figure 2 is a side elevation of the buff re moved from its driving shaft; and

Figure 3 is a diagrammatic view of the new type of. woven fabric from which the disks forming the buff are cut.

Referring in detail to the drawings, 4 indicates a buff wheel formed-of round disks cut from cotton fabric such as muslin, of s the type hereinafter more fully described.

To form the bufling wheel, a suitable number of such disks or plies may be superimposed and assembled with or without stitching as indicated at 5, or other form of fastening. These disks. may, if desired, be provided with central perforations .6 to enable .the assembled plies forming the bufling wheel to be slipped over any of the usual types of arbors or the like, such as for example the round portion 7 of an arbor 8 which has an innercollar or flange 9 serving as a backingfor the wheel 4 when the. latter is pressed or v clamped against it by a heavy washer 10 which is forced inward by the nut 11 fitting on the threaded end of the shaft 8. These details of use are not'in themselves features of the present invention, but are only set' forth to illustrate one of the many ways. in which the bufi can be employed.

The disks from which the bufiing wheel 4.- is formed are, in accordance .with one form. of my invention, cut from a fabric in which the warp and weft threads have what may be termed a square count. That is to say,

for a given square of the fabric,the warp and weft threads are equal .in number.

Figure 3 illustrates diagrammatically and in I exaggerated size, a portion of fabric such as muslin, having the thread arrangement described. The warp threads 12 and the -weft threads 13 are herein shown to be equal in number and also equal in weight.

Whileeither or both of these two features in'themselve's represent an improvement'in the wearingquality of the bufi's as compared with those heretofore employed, it is also important that these threads be not only also be equal in twist and tension and of the same grade and length of'fiber.

With a butt so constructed, the tendency to give way at one point is no greater than it is at another and, therefore,for a given weight of material the wearing quality is maximum.

In its broader aspect, the invention comprehends a bufi in which the warp and weft threads are equal in weight or equal in number, or both," and in its more specific form, it further comprises the' additional features of these threads being of equal twist, equal tension, and equal strength.

1. A bufl wheel comprising a plurality of disks offabric, the warp and weft threads of the fabric disks being equal in number.

2. A bufi wheel comprising a plurality of disks 6f fabric, the warp and weft threads of the fabric disks being equal in weight. equal in weight and number, but that they 3. A bufi' wheel comprising a plurality of disks of fabric, the warp and weft threads of the fabric disks being equal in number and equal in weight.

4. A buff wheel comprising a plurality of disks of fabric, the warp and Weft threads of the fabric disks'being equal in number and being of equal" twist.

5. A bufi' wheel comprising a plurality of disks of fabric, the warp and weftthreads of the fabric disks being equally twisted and being equal in number, equal in weight, and equal in tension.

6. A bufi wheel comprising a plurality of 30 equal in weight, and the threads of both sets 

